My Arduino (actually an ESP32-based Adafruit HUZZAH32) is running as a wifi server. Its main job is to service GET requests from a user, and to periodically turn devices on and off based on the commands implicit in those GETs.
It needs to keep an accurate time/date - in order to turn devices on/off as directed. My cheap real-time clock is off a couple seconds or more per day. So I figure I'll use code such as the example at:
... in which the Arduino creates a client to get the time from an NTP server. Once a day (e.g. checking for the RTC time to be 00:00hrs in my "loop"), I'll adjust the RTC using NTP.
Looking around, it sounds like this is ok, for the Arduino to act as a client, as long as it's not actively servicing a client (the user's GET requests). Do I have that right ? Need I worry that a user might be sending a GET when that happens ?